REAL ESTATE OWNED - Additional Information (Details)		3 Months Ended		9 Months Ended
		Sep. 30, 2025 USD ($) property	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) property loan	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Real Estate [Line Items]
Number of real estate properties | property		4		4
Multi-family bridge loan, carrying value	[1]	$ 835,863,888		$ 835,863,888		$ 1,060,123,298
Real estate investment property depreciation expense		300,000		500,000
Net income (expense) from real estate owned operations		(188,945)	$ 0	(327,722)	$ 0
2021-FL1 CLO and LMF 2023-1
Real Estate [Line Items]
Net income (expense) from real estate owned operations		1,600,000		1,600,000
Net income (expense) from real estate owned operations and operating expense		$ 1,400,000		$ 1,400,000
Multifamily
Real Estate [Line Items]
Real Estate Owned, weighted average occupancy rate		73.50%		73.50%
Multifamily | ABR Foreclosed Real Estate Owned Assets | Minimum
Real Estate [Line Items]
Overall capitalization rate assumption (percent)				6.25%
Multifamily | ABR Foreclosed Real Estate Owned Assets | Maximum
Real Estate [Line Items]
Overall capitalization rate assumption (percent)				7.40%
Multifamily | ABR Foreclosed Real Estate Owned Assets | 2021-FL1 CLO
Real Estate [Line Items]
Number Of foreclosed real estate property loans | loan				2
Multi-family bridge loan, carrying value		$ 39,500,000		$ 39,500,000
Financing receivable, specific CECL reserve				$ 2,400,000
Multifamily | ABR Foreclosed Real Estate Owned Assets | LMF 2023-1 Financing
Real Estate [Line Items]
Number Of foreclosed real estate property loans | loan				2
Multi-family bridge loan, carrying value		$ 19,900,000		$ 19,900,000
Financing receivable, specific CECL reserve				$ 700,000

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs") as the Company was the primary beneficiary of these VIEs. As of September 30, 2025 and December 31, 2024, assets of consolidated VIEs totaled $894,395,215 and $1,058,138,406, respectively and the liabilities of consolidated VIEs totaled $672,585,820 and $831,001,605 respectively. See Note 4 for further discussion.